... ,2x26w 3.Shape(LxHxW): 180mmx50mmx110mm 4.CE,TUV approval Plastic Case Gear Box, GB-S03/226,GB-S03/218,GB-S03/213 ... Gear Box/Control BoxFor single-ended compact fluorescent lampsShape(L*H*W): ... .Magnetic Ballast inside:PLC 13W,PLC18W,PLC26W 2X26w/2x18/2x13w plastic ballast box